Weblogic cookie handling issue prevents login

After configuring and deploying the XWiki 3.1 WAR to Weblogic 10.3, then importing the standard xwiki-enterprise-wiki-3.1.xar, I was not able to login as Admin/admin.

After reviewing log files I noticed:
WARN u.i.x.MyPersistentLoginManager - Login cookie validation hash mismatch! Cookies have been tampered

After investigating the code in this class, and reviewing the cookie header handling differences between my Weblogic deployment and the standalone installer version, I noticed that Weblogic is apparently including the double-quotes in the cookie string in the returned value to getCookieValue(). This then always causes the getValidationHash() to fail since the username/password contain quotes.

I was able to workaround this issue for now by creating a servlet filter on the action servlet and striping any quotes from cookie values (probably not the best long term solution).